Improved series of dies for forming axles



FLPEI'EHS. PHOTO-LITHOGRAPMER. WASHINGTON. D. C.

ntrd Ctetr 3jr/latent tjljlraA JOSEP NICOL, OF AUBURN, NEW YORK, ASSIGNOR T0 SHELDON & 00.

Letters Patent No. 98,878, dated January 18,l 1870.

IMPRQVED SERIES OF DIES FCR FORMING .A XLS.

The She'dule referred toli these Letters Patent and making part of the llame.

To all whom it may concern Be it known that I, Josn1 rr` NIooL, of the city of n Auburn, in Cayuga county, New York, have invented a new and useful Improvement in Swaging Axles, and drawing out and forming the arm, swell, andcollar, at one heat, whereby I am enabled to save much time, and produce better work than by any other process known to me, and requiring two heats.

'lhe invention consists in dies, formed as hereinafter more fully described.

Figure 1 represents the lower, and

Figure 2, the upper portion of my improved dies.

Figure 3 shows the form given to a piece of' round iron or steel. by dies No. 1.

Figure 4 shows the form in which the, iron isleft aft-er being operated upon by dies No. 2.

Figure 5 represents the work nishedV by dies N o. 3.

Heretofore, in the manufacturing of axles, the dies have been so shaped as to bear equally upon thewhole portion of the metal under them, thereby requiring more time to swage theblank to the proper forni for an axle, and during such time the .iron gladually cools, rendering it necessary to reheat it before the axle -can be fully formed.

It is well known that the iron, when Vat white heat, andrst placed in the die, is in the best condition to be swaged into the form required, and at that time less power is required to force the iron into a' die or form.

The die N o. l is specially constructed, so that nearly the whole forceof `the blow l'of the hammer or drop is exerted on that portion of the iron to form the collar B and the square C back of it, the forward portion of the die being made of conical form, to allow the iron, in advance of the collar, which is to form the swell E and arm F, to-spread out freely.`

By'distributng the force of the hammer at this point, in relation t-o the die and axle, I am able to form more expeditiously the collar and square.

When the iron has been swaged, by die N o. l, to the form represented in fig. 3, it is then laid quickly in die No. 2, with the `collar B against the side, e', of thel die, and is turned by the operator in the usual manner. The portionof the dieumarked e, 'forms the swell E, and that portion marked f, forms the arm F; but the portion, f does not, owing-to the construction of the die, commence to operate on the iron until the,A collar is about finished, and then it operates grad- .lhe parts c b d, of die No. 1,form the iron into`the 4 shape C Bpl). l

The iron, when first heated and operated ongis in bar-form, and it is inserted in die No. 1, until its endI rests against the gauge A, which is ,regulated according to the length of' the arm required.

By the gradual reduction of the iron, and concen-A trating the force of the hammer upon only portions of the material within the die when in its most heated condition, and as described, VI am enabled to produce, as I believe, for, the first time, by one heat, an axle, having an arm, swell, collar, and square, ready for trimming.

Before the arm is turned in the lathe, that portion backof the collar B is drawn' down to the proper square, in the usual manner, and cut o'. y

The lower die rests on an anvill or firm foundation, and the upper die is to be operated in any known way, by suitable trip or steam-hammer.

set forth.

JOSEPH NICOL..

, Witnesses:

A. BABBITT, i JAMES F. GRQGKER. 

